Powerpivot (page 1)
Powerful data analysis and data modeling in Excel using Power Pivot.
PowerPivot 3: Managing the Data Model
Analyzing ginormous files with Microsoft PowerPivot.
PowerPivot 2: What's the Deal with Delimiters?
Working with large flat files in PowerPivot.
Power to the Pivot Redux: Enter PowerPivot
Dipping into Microsoft's PowerPivot add-on for Excel.